EP0507311A3 - High frequency amplifying apparatus - Google Patents

High frequency amplifying apparatus Download PDF

Info

Publication number: EP0507311A3
Authority: EP; European Patent Office
Prior art keywords: high frequency; amplifying apparatus; frequency amplifying; frequency; amplifying
Prior art date: 1991-04-04
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP19920105733

Other versions

EP0507311B1 (en

EP0507311A2 (en

Inventor

Kazuhiko Kubo

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Panasonic Holdings Corp

Original Assignee

Matsushita Electric Industrial Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1991-04-04

Filing date

1992-04-02

Publication date

1993-12-01

1992-04-02 Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd

1992-10-07 Publication of EP0507311A2 publication Critical patent/EP0507311A2/en

1993-12-01 Publication of EP0507311A3 publication Critical patent/EP0507311A3/en

1996-10-30 Application granted granted Critical

1996-10-30 Publication of EP0507311B1 publication Critical patent/EP0507311B1/en

2012-04-02 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/0052—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using diodes

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Amplifiers (AREA)
Control Of Amplification And Gain Control (AREA)

EP92105733A 1991-04-04 1992-04-02 High frequency amplifying apparatus Expired - Lifetime EP0507311B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP07152491A JP3291736B2 (en)	1991-04-04	1991-04-04	High frequency amplifier
JP71524/91		1991-04-04

Publications (3)

Publication Number	Publication Date
EP0507311A2 EP0507311A2 (en)	1992-10-07
EP0507311A3 true EP0507311A3 (en)	1993-12-01
EP0507311B1 EP0507311B1 (en)	1996-10-30

Family

ID=13463203

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP92105733A Expired - Lifetime EP0507311B1 (en)	1991-04-04	1992-04-02	High frequency amplifying apparatus

Country Status (5)

Country	Link
US (1)	US5243300A (en)
EP (1)	EP0507311B1 (en)
JP (1)	JP3291736B2 (en)
KR (1)	KR960005374B1 (en)
DE (1)	DE69214864T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3335079B2 (en) *	1996-07-01	2002-10-15	シャープ株式会社	AGC circuit
CN102098968B (en) *	2008-07-17	2015-07-22	史密夫和内修有限公司	Anchor
CN105188562B (en)	2013-03-06	2019-02-26	史密夫和内修有限公司	Micro Anchor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3518585A (en) *	1966-12-30	1970-06-30	Texas Instruments Inc	Voltage controlled a.c. signal attenuator
US3624561A (en) *	1970-02-24	1971-11-30	Ben H Tongue	Broadband aperiodic attenuator apparatus
US4019160A (en) *	1975-12-05	1977-04-19	Gte Sylvania Incorporated	Signal attenuator circuit for TV tuner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1537690C3 (en) *	1967-09-20	1975-02-13	Siemens Ag, 1000 Berlin Und 8000 Muenchen	Transistor-equipped broadband amplifier with gain control

1991
- 1991-04-04 JP JP07152491A patent/JP3291736B2/en not_active Expired - Fee Related
1992
- 1992-04-01 US US07/861,048 patent/US5243300A/en not_active Expired - Fee Related
- 1992-04-02 EP EP92105733A patent/EP0507311B1/en not_active Expired - Lifetime
- 1992-04-02 DE DE69214864T patent/DE69214864T2/en not_active Expired - Fee Related
- 1992-04-03 KR KR1019920005603A patent/KR960005374B1/en not_active Expired - Fee Related

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3518585A (en) *	1966-12-30	1970-06-30	Texas Instruments Inc	Voltage controlled a.c. signal attenuator
US3624561A (en) *	1970-02-24	1971-11-30	Ben H Tongue	Broadband aperiodic attenuator apparatus
US4019160A (en) *	1975-12-05	1977-04-19	Gte Sylvania Incorporated	Signal attenuator circuit for TV tuner

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 94 (E-593)26 March 1988 & JP-A-62 226 705 ( TOSHIBA ) *
PATENT ABSTRACTS OF JAPAN vol. 4, no. 141 (E-28)(623) 4 October 1980 & JP-A-55 93 310 ( MASPRO DENKO K. K. ) *

Also Published As

Publication number	Publication date
EP0507311B1 (en)	1996-10-30
JPH04306907A (en)	1992-10-29
KR920020830A (en)	1992-11-21
DE69214864T2 (en)	1997-02-27
JP3291736B2 (en)	2002-06-10
EP0507311A2 (en)	1992-10-07
DE69214864D1 (en)	1996-12-05
US5243300A (en)	1993-09-07
KR960005374B1 (en)	1996-04-24

Legal Events

Date	Code	Title	Description
1992-08-21	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1992-10-07	17P	Request for examination filed	Effective date: 19920402
1992-10-07	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE GB
1993-10-11	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1993-12-01	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE GB
1995-09-13	17Q	First examination report despatched	Effective date: 19950728
1996-02-13	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1996-04-30	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1996-08-03	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1996-09-13	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1996-10-30	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE GB
1996-12-05	REF	Corresponds to:	Ref document number: 69214864 Country of ref document: DE Date of ref document: 19961205
1997-09-05	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1997-09-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1997-10-22	26N	No opposition filed
2001-03-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20010326 Year of fee payment: 10
2001-03-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20010328 Year of fee payment: 10
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2002-04-02	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020402
2002-11-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021101
2002-11-20	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20020402

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